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added HasAnyFlag and improved memory performance of HasFlag in DynamicEnum
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Ell 2021-06-11 20:22:25 +02:00
parent fda4097aa5
commit dd09f0af25
1 changed files with 33 additions and 5 deletions
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38
MLEM.Data/DynamicEnum.cs
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@ -32,6 +32,9 @@ namespace MLEM.Data {
private static readonly Dictionary<Type, Dictionary<string, DynamicEnum>> ParseCache = new Dictionary<Type, Dictionary<string, DynamicEnum>>();
private readonly BigInteger value;
private Dictionary<DynamicEnum, bool> allFlagsCache;
private Dictionary<DynamicEnum, bool> anyFlagsCache;
private string name;
/// <summary>
@ -46,13 +49,38 @@ namespace MLEM.Data {
}
/// <summary>
/// Returns true if this enum value has the given <see cref="DynamicEnum"/> flag on it.
/// Returns true if this enum value has ALL of the given <see cref="DynamicEnum"/> flags on it.
/// This operation is equivalent to <see cref="Enum.HasFlag"/>.
/// </summary>
/// <param name="flag">The flag to query</param>
/// <returns>True if the flag is present, false otherwise</returns>
public bool HasFlag(DynamicEnum flag) {
return (GetValue(this) & GetValue(flag)) == GetValue(flag);
/// <seealso cref="HasAnyFlag"/>
/// <param name="flags">The flags to query</param>
/// <returns>True if all of the flags are present, false otherwise</returns>
public bool HasFlag(DynamicEnum flags) {
if (this.allFlagsCache == null)
this.allFlagsCache = new Dictionary<DynamicEnum, bool>();
if (!this.allFlagsCache.TryGetValue(flags, out var ret)) {
// & is very memory-intensive, so we cache the return value
ret = (GetValue(this) & GetValue(flags)) == GetValue(flags);
this.allFlagsCache.Add(flags, ret);
}
return ret;
}
/// <summary>
/// Returns true if this enum value has ANY of the given <see cref="DynamicEnum"/> flags on it
/// </summary>
/// <seealso cref="HasFlag"/>
/// <param name="flags">The flags to query</param>
/// <returns>True if one of the flags is present, false otherwise</returns>
public bool HasAnyFlag(DynamicEnum flags) {
if (this.anyFlagsCache == null)
this.anyFlagsCache = new Dictionary<DynamicEnum, bool>();
if (!this.anyFlagsCache.TryGetValue(flags, out var ret)) {
// & is very memory-intensive, so we cache the return value
ret = (GetValue(this) & GetValue(flags)) != 0;
this.anyFlagsCache.Add(flags, ret);
}
return ret;
}
/// <inheritdoc />